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Parengonoceras haasi
Taxonomy
Parengonoceras haasi was named by Benavides-Caceres (1956). Its type specimen is AMNH 27399.1, a shell, and it is a 3D body fossil. Its type locality is Bed 9, Section 4 - CelendÃn [Crisnejas Fm], which is in an Albian carbonate shale in the Crisnejas Formation of Peru.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Parengonoceras haasi Benavides-Caceres pp. 446-447 figs. pl. 46, figs. 1-6 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Parengonoceras haasi Benavides-Caceres 1956
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 34.9 | 30.5 | 42.0 | 34.0 | 5.14 | |
| shell diameter | 4 | 66.4 | 56.5 | 80.0 | 65.8 | 10.4 | |
| shell inflation | 4 | 5.58 | 4.50 | 6.00 | 6.00 | 0.750 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Albian or 113.20000 to 110.10000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | Peru (Cajamarca) | Parengonoceras haasi (type locality: 88170) |